You can adjust the screen brightness on Windows 11 from the notification area by clicking on the battery icon. From there, you will see an option to change the brightness. Next, simply move the slider to the left to decrease the brightness or move it to the right to increase the brightness. To get a visual idea of how this works, look at the steps below.
Step 1
Click the battery icon from the notification area (bottom-right corner).
Step 2
Move the slider to the left to lower the brightness or to the right to increase it.
What If You Are Not Using a Laptop?
If you are not using a laptop, the best way to change the brightness is by doing so directly from your monitor.
The method varies depending on the monitor. Thus, a quick search online for how to change the brightness for your specific monitor will solve your problem